Audio delay/preview unit



FIG. 1 is a front and top-left perspective view of an audio delay/preview unit showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a front and top-left perspective view thereof with the cover door in the open position. 

The ornamental design for an audio delay/preview unit, as shown and described. 